1
0
mirror of https://github.com/MontFerret/ferret.git synced 2024-12-14 11:23:02 +02:00
ferret/pkg/stdlib/math/exp.go
2018-10-14 13:06:27 -04:00

29 lines
662 B
Go

package math
import (
"context"
"math"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
)
// Exp returns Euler's constant (2.71828...) raised to the power of value.
// @param number (Int|Float) - Input number.
// @returns (Float) - Euler's constant raised to the power of value.
func Exp(_ context.Context, args ...core.Value) (core.Value, error) {
err := core.ValidateArgs(args, 1, 1)
if err != nil {
return values.None, err
}
err = core.ValidateType(args[0], core.IntType, core.FloatType)
if err != nil {
return values.None, err
}
return values.NewFloat(math.Exp(toFloat(args[0]))), nil
}